Lab 4 - Rat dissection Flashcards
Nares
Nostrils
Vibrissae
Whiskers
Anus
Opening to digestive tract
Pinna
Flap like external ear
Nictitating Membrane
Inside the corner of the eye - protection
Urethral orifice
Most anterior opening for urinary system
Incisor
Narrow edged tooth adapted for cutting
What is the tracheae
A tube that air goes down to allow access for air to go to lungs
From neck to chest
White and lined with cartilage
What is opening of tracheae called
Glottis
How can you distinguish between tracheae and oesophagus
Oesophagus has lack of cartilage rings
What occupies most of the abdominal space
Liver
Function of liver
Store glycogen
Transforms wastes into less harmful susbtances
Produce bile - digestion of fats
What thing does human have and rat does not and what does it do
Gall bladder
Stores and concentrates bile before being released into GI tract
What is the heart surrounded by
Pericardium - tough protective membrane
How many lobes does right lung have
3
How many lobes does left lung have
2
What is the diaphgram and its function
Thin muscular sheet that seperates abdominal and thoracic activities.
For respiration
How many lobes in rat liver
4
How many lobes in human liver
2
What is the spleen and its function
Dark coloured organ left of stomach
Storage organ for platelet’s and a site for filtering
What organ system is spleen part of
Circulatory system
Which organ is near the stomach and appears yellowish
Pancreas
What does pancreas do
Produce sodium bicarbonate and enzymes - digestion
Which two organ systems is pancreas part of
Digestive system and Endocrine system
